<?php

use Phalcon\Mvc\Controller;

class ControllerBase extends Controller
{

    protected function initialize()
    {
        $this->tag->prependTitle('在线测试 | ');
        //$this->view->setTemplateAfter('main');
    }

    protected function forward($uri)
    {
        $uriParts = explode('/', $uri);
        $params = array_slice($uriParts, 2);
      	return $this->dispatcher->forward(
      		array(
      			'controller' => $uriParts[0],
      			'action' => $uriParts[1],
                  'params' => $params
      		)
      	);
    }

    //如果没有sql注入风险返回false，否则返回true
    protected function inject_check($content){  
        $check=preg_match('/select|insert|update|delete|\'|\/\*|\*|\.\.\/|\.\/|union  |into|load_file|outfile/i',$content);  
        if($check){  
            return true;  
        }else{  
            return false;  
        }  
    } 

    protected function RemoveXSS($val) {  
       // remove all non-printable characters. CR(0a) and LF(0b) and TAB(9) are allowed  
       // this prevents some character re-spacing such as <java\0script>  
       // note that you have to handle splits with \n, \r, and \t later since they *are* allowed in some inputs  
       $val = preg_replace('/([\x00-\x08,\x0b-\x0c,\x0e-\x19])/', '', $val);  
     
       // straight replacements, the user should never need these since they're normal characters  
       // this prevents like <IMG SRC=@avascript:alert('XSS')>  
       $search = 'abcdefghijklmnopqrstuvwxyz'; 
       $search .= 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';  
       $search .= '1234567890!@#$%^&*()'; 
       $search .= '~`";:?+/={}[]-_|\'\\'; 
       for ($i = 0; $i < strlen($search); $i++) { 
          // ;? matches the ;, which is optional 
          // 0{0,7} matches any padded zeros, which are optional and go up to 8 chars 
     
          // @ @ search for the hex values 
          $val = preg_replace('/(&#[xX]0{0,8}'.dechex(ord($search[$i])).';?)/i', $search[$i], $val); // with a ; 
          // @ @ 0{0,7} matches '0' zero to seven times  
          $val = preg_replace('/(&#0{0,8}'.ord($search[$i]).';?)/', $search[$i], $val); // with a ; 
       } 
     
       // now the only remaining whitespace attacks are \t, \n, and \r 
       $ra1 = Array('javascript', 'vbscript', 'expression', 'applet', 'meta', 'xml', 'blink', 'link', 'style', 'script', 'embed', 'object', 'iframe', 'frame', 'frameset', 'ilayer', 'layer', 'bgsound', 'title', 'base'); 
       $ra2 = Array('onabort', 'onactivate', 'onafterprint', 'onafterupdate', 'onbeforeactivate', 'onbeforecopy', 'onbeforecut', 'onbeforedeactivate', 'onbeforeeditfocus', 'onbeforepaste', 'onbeforeprint', 'onbeforeunload', 'onbeforeupdate', 'onblur', 'onbounce', 'oncellchange', 'onchange', 'onclick', 'oncontextmenu', 'oncontrolselect', 'oncopy', 'oncut', 'ondataavailable', 'ondatasetchanged', 'ondatasetcomplete', 'ondblclick', 'ondeactivate', 'ondrag', 'ondragend', 'ondragenter', 'ondragleave', 'ondragover', 'ondragstart', 'ondrop', 'onerror', 'onerrorupdate', 'onfilterchange', 'onfinish', 'onfocus', 'onfocusin', 'onfocusout', 'onhelp', 'onkeydown', 'onkeypress', 'onkeyup', 'onlayoutcomplete', 'onload', 'onlosecapture', 'onmousedown', 'onmouseenter', 'onmouseleave', 'onmousemove', 'onmouseout', 'onmouseover', 'onmouseup', 'onmousewheel', 'onmove', 'onmoveend', 'onmovestart', 'onpaste', 'onpropertychange', 'onreadystatechange', 'onreset', 'onresize', 'onresizeend', 'onresizestart', 'onrowenter', 'onrowexit', 'onrowsdelete', 'onrowsinserted', 'onscroll', 'onselect', 'onselectionchange', 'onselectstart', 'onstart', 'onstop', 'onsubmit', 'onunload'); 
       $ra = array_merge($ra1, $ra2); 
     
       $found = true; // keep replacing as long as the previous round replaced something 
       while ($found == true) { 
          $val_before = $val; 
          for ($i = 0; $i < sizeof($ra); $i++) { 
             $pattern = '/'; 
             for ($j = 0; $j < strlen($ra[$i]); $j++) { 
                if ($j > 0) { 
                   $pattern .= '(';  
                   $pattern .= '(&#[xX]0{0,8}([9ab]);)'; 
                   $pattern .= '|';  
                   $pattern .= '|(&#0{0,8}([9|10|13]);)'; 
                   $pattern .= ')*'; 
                } 
                $pattern .= $ra[$i][$j]; 
             } 
             $pattern .= '/i';  
             $replacement = substr($ra[$i], 0, 2).'<x>'.substr($ra[$i], 2); // add in <> to nerf the tag  
             $val = preg_replace($pattern, $replacement, $val); // filter out the hex tags  
             if ($val_before == $val) {  
                // no replacements were made, so exit the loop  
                $found = false;  
             }  
          }  
       }  
       return $val;  
    }
}
